Section 2.4 Monitoring Faults

---

Vocabulary

---

Creep Meters: a creep meters uses a wire stretched across the fault and measures horizontal movements of the ground

Laser-Ranging Devices: a device that uses laser beams to detect movements from the fault

Tiltmeters: measures tilting of the ground, like a carpenter's level

Satellite Monitors: a radar that makes images of the fault

Outline

---

Devices that Monitor Faults

-Creep Meters
measures horizontal movements
-Laser-Ranging Devices
laser beams to detect movements
-Tiltmeters
measures tilting movements on the ground
-Satellite Monitors
takes images of the fault

Monitoring Risk in the United States

-Can't predict earthquakes
-highest risk of earthquakes at Pacific Coast of California